Ai-Thinker Si24R1 Wireless Module – 2.4GHz SPI Transceiver with Low-Power Mode & Data Passthrough (Made in China)

$0.89

SKU: FA2017-2 Category:

Description

The Ai-Thinker Si24R1 Wireless Module is a high-performance, cost-effective 2.4GHz RF transceiver designed for low-power wireless data communication. Fully pin-to-pin and register-compatible with the industry-standard Nordic nRF24L01+, the Si24R1 serves as a seamless “drop-in” replacement. It is engineered with an integrated Enhanced ShockBurst™ protocol engine, which offloads complex packet handling tasks from your microcontroller to the module itself, ensuring reliable communication with minimal software overhead.
Key Features
  • Enhanced RF Performance: Delivers a maximum transmit power of +7dBm, providing a more stable link and longer range compared to standard 0dBm modules.
  • Ultra-Low Power consumption: Features a deep Shutdown Mode (1μA) and a fast-waking Standby Mode (15μA), making it ideal for battery-operated IoT sensors.
  • Wide Voltage Compatibility: While it operates on 1.9V–3.6V, its digital I/O pins are 5V tolerant (up to 5.25V), allowing direct connection to 5V microcontrollers like Arduino without external level shifters.
  • Multi-Point Networking: Supports up to 6 data pipes (MultiCeiver™), allowing a single receiver to collect data from up to six transmitters simultaneously.
  • Hardware ARQ Engine: Automatically handles packet assembly, CRC error detection, and automatic retransmission of lost data.

Additional information

Frequency Band

2.400GHz to 2.525GHz (126 selectable channels).

Air Data Rates

Programmable at 250kbps, 1Mbps, and 2Mbps.

Interface

4-wire hardware SPI (up to 10Mbps).

Sensitivity

-96dBm at 250kbps; -83dBm at 2Mbps

Current (Typical)

12mA during transmission (at 0dBm); 15mA during reception (at 2Mbps).

Operating Temperature

Industrial-grade range of -40°C to +85°C.

Antenna

Integrated high-efficiency PCB trace antenna.

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